摘要
确定性通信是构建混合安全关键系统的关键技术。分析了混合安全关键系统对网络通信的要求,探讨了时间触发以太网的体系结构、时钟同步机制、数据传输控制机制、余度与故障控制机制等,针对混合安全关键系统的要求,详细分析了时间触发以太网的实时性、确定性、高可靠性等特性。分析表明:时间触发以太网是构建混合安全关键系统的优选通信网络,能有效降低系统集成复杂性和费用。
Deterministic Communication is the key technology in constructing mixed safety criticality system.Firstly,the requirement of network communication for mixed safety criticality system is presented.Secondly,the Time Triggered Ethernet is introduced and studied,which focuses on system architecture,mechanism of clock synchronization,data transmission control,redundancy,and fault-control and so on.Thirdly,the analysis of real-time,deterministic and high reliability in Time Triggered Ethernet is given,and indicates that the Time Triggered Ethernet is a preference to construct mixed safety criticality system and can reduce its complexity and costs efficiently.
出处
《航空计算技术》
2013年第2期120-122,127,共4页
Aeronautical Computing Technique
基金
航空科学基金项目资助(20101931004)
关键词
混合安全关键系统
通信
TTE
特性
mixed safety criticality system
communication
TTE
character
